baber/WOPTO huggingface dataset:
Patent GB-253126-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J13/32
Filed: 1926-06-03
Abstract: 253,126. British Thomson-Houston Co., Ltd., (Assignees of Brown, H. D.). June 3, 1925, [Convention date]. Low-pressure metallic-vapour apparatus.-The anode chamber of a discharge device such as a mercury-vapour rectifier has an insulating member from which the anode is suspended. and a perforated support interposed between the insulating member and the wall of the support so as to allow free circulation of vapour; the pressure of vapour in the anode chamber is reduced by means of a semi-circular baffle. As shown in Fig. 2, the anode 6 is mounted on an insulator 24 supported by a spoked member 25, which is sloped away from the insulator so that condensed mercury drains off. The anode lead 35 is flexible to prevent strain on the seals, and is mounted on a metal hood 28 sealed to a glass sleeve 27, which is sealed to a flanged metal ring 30. An insulating cylinder 39, secured to the sleeve, prevents arcing to the lower seal. The ring 30 is clamped between the wall 23 of the anode chamber and a collar 32, the joint being made airtight by means of a split ring 31 and wire hoop gaskets 34 inserted in grooves. The anode is formed with a hemi-spherical cavity, and may be provided with cooling fins 40. A depending tube 37 is cut away to form a semi-circular baffle. Vapour is projected against the top of the tank 1, and is deflected downwards, thus causing a reduction of pressure in the anode chamber. The cathode chamber 12 is secured to the tank through a metal collar 16 and an insulating collar 17 by bolts 18 with springs 22. Wire hoop gaskets 20 are inserted in grooves. A quartz cylinder 13 is surrounded by a porcelain cylinder 14 and secured thereto by a member 15 so as to form a chamber floating on the mercury and con. fining the cathode spot. The tank 1 and cathode chamber are surrounde-d by cooling jackets 3, 4 respectively, and the jacket is connected by an annular opening 3<1> with a jacket 2.
Patent GB-120232-A (GB)
Title: Improvements in and relating to the Illumination of Dials.
Inventor: ATKINSON THOMAS HERBERT
IPC: G04B19/32
Filed: 1917-09-29
Abstract: 120,232. Atkinson, T. H. Sept. 29, 1917. Dials; hands.-A transparent celluloid dial or scale a, Figs. 1, 2 and 3, is placed in the bezel of the instrument with the crystal so as to be above the hands c, a plain plate d below them taking the place of the ordinary dial. The dial may be printed with double numerals, as shown in Fig. 3, between those marked at campleted intervals. The hands for a dial without intermediate numerals are formed with flat ends extending each side far enough to give background for two numerals at a time, as shown in Fig. 1. For a dial having intermediate numerals, the hands are terminated by disks, as shown in Fig. 3. In instruments having only an arc scale, the end of the hand is broadened as a fan. A minute hand is additionally formed with tail-piece appearing under the minute graduations. Illuminating, means for.-A transparent dial above hands shaped as shown in Figs. 5 to 9 being used, the readings are rendered visible in the dark by radium composition on the upper sides of the hands, which are slightly dished to contain it.
Patent GB-367254-A (GB)
Title: Improvements in and relating to reinforcing means for concrete, cement, plaster and the like
IPC: E04C5/16
Filed: 1931-05-13
Abstract: 367,254. Reinforced concrete. WALLER, J. H. DE W., 115, Grafton Street, Dublin. May 13, 1931, No. 14128. Convention date, Nov. 4, 1930. [Class 20 (iv).] A netted reinforcement for concrete, cement, or plaster is provided at the crossing points with projecting wire loops or knots which ensure the desired thickness of concrete covering or space the fabric from a foundation. In the construction shown in Fig. 1, the projecting loop 3 forms part of a wire which is doubled over the crossing point, the ends 4, 5 being bent up around the strands 1, 2, and brought under a tightening bar placed loosely in the loop. The tightening bar is twisted round to form a knot 6 and is finally removed. In the arrangement shown in Figs. 5 and 6, two doubled wires are used which are twisted at the base of the loops 8 and the loose ends are inserted in holes in a plate adapted to be rotated mechanically so that the ends are twisted underneath the strands, as shown in Fig. 6. The plate is then removed. In a further arrangement shown in Fig. 4, two wires are doubled over the strands 1, 2, and the loose ends are twisted to form the knot 7.
Patent GB-151056-A (GB)
Title: Improvements in printing cotton fabrics
IPC: D06P5/15
Filed: 1919-06-05
Abstract: Half-discharge effects on coloured grounds are obtained by first printing cotton fabrics with thickened solutions of alkali sulphites, with metallic mordants, fixing, dunging, and then either dyeing with alizarin or other dyes appropriate to the mordant or tanning and dyeing with basic or other appropriate dyes.  The fabric may be unprepared or may be previously treated with a turkey-red oil, b -naphthol, or chlorate prepare.  Citric acid or lime-juice resists may be printed on simultaneously with the sulphite half-resist. According to examples:-A sulphite standard is prepared from sodium bisulphite, caustic soda, gum, water, and turpentine, with or without aluminium or chromium acetate; fabric is printed therewith, alone or simultaneously with a limejuice resist, then padded with aluminium acetate, dried, fixed, dunged, and dyed; fabric is printed with the sulphite half-resist described above, to which sodium acetate has been added, and simultaneously with a lime-juice resist, overprinted with a prussiate aniline black mixture, aged, padded with aluminium acetate, dried, fixed, dunged, and dyed; chlorate-prepared fabric is printed with the sulphite half-resist, to which a stannous salt has been added, and simultaneously with a lime-juice resist, padded with an iron mordant, dried, fixed, dunged, and dyed; b -naphthol-prepared fabric is printed with the sulphite half-resist containing chromium acetate, cover-printed with diazotized p-nitraniline and simultaneously with a chrome mordant, fixed, dunged, and dyed; fabric is printed with the sulphite half-resist, alone or in conjunction with a lime-juice resist, padded with aluminium acetate, dried, fixed, dunged, tanned, and dyed with basic dyes.
Patent GB-874655-A (GB)
Title: Improvements in and relating to variable-frequency oscillators
IPC: H03B5/28
Filed: 1957-05-03
Abstract: 874,655. Variable frequency oscillators. FURZEHILL LABORATORIES Ltd, and SMITH, D. L. A. May 2, 1958 [May 3, 1957], No. 14264/57. Class 40(6) An oscillator comprises an amplifier having a forward path and a feedback path including first and second phase shifting RC networks respectively, one of the networks including a coarse frequency control, and the other a fine frequency control. In the embodiment shown in Fig. 1, the output of an amplifier A1 is fed into a fine frequency control phase shift network comprising resistor 15 and a variable capacitor 16 and thence into another amplifier A2. A feedback loop from the output of the amplifier A2 contains a coarse frequency control phase shift network comprising variable capacitors 12, 21 and resistors 13, 20, and the output from this network is fed into the input of the first amplifier Al. An alternative embodiment shown in Fig. 2 comprises a Wien Bridge Oscillator in which the resistive elements of the phase shift networks each comprises three resistors of different value, arranged to be selectively connected by ganged switches 31, 36, 48 as a coarse control. A capacitor 49 is connected in parallel with the capacitor 44, and is ganged to operate with the ganged controls of capacitors 27 and 32, such that its value varies inversely with the value of capacitors 27 and 32 which give fine frequency adjustment. The feedback path containing the phase shift network is taken from a cathode follower stage 42 to the grid of the first amplifier 37, and a second feedback path is taken from the anode of the second amplifier 38 to the cathode of the first amplifier.
Patent GB-251125-A (GB)
Title: Improvements in sound amplifiers
IPC: H04R1/34
Filed: 1925-06-02
Abstract: 251,125. Payne, C. H. June 2, 1925, Sound magnifying and directing appliances. - A sound amplifying device comprises a flat chamber 11 into which sound is introduced axially from a sound - reproducing unit which may be accommodated in a recess 13 in the base 10, the sound being deflected laterally by a central depending portion 18 so as to issue laterally through openings 19. Radial partitions 20 may be provided to prevent a swirling motion of the sound waves within the chamber and a dead-air chamber 23 may be formed between the depending portion 18 and a cover 12 to minimize vibration of the top wall of the chamber. In modifications, the base 10 is formed as a pedestal and the depending portion 18 is solid and formed mtegral with the top of the chamber.
Patent GB-985441-A (GB)
Title: Overlock sewing machine provided with means for attaching elastics and the like to fabric edges
IPC: D05B73/00
Filed: 1963-04-10
Abstract: 985,441. Eccentrics. VIRGINIO RIMOLDI & CO. S.p.A. April 10, 1963 [April 12, 1962], No. 14388/63. Heading F2K. [Also in Division D1] A variable compound eccentric comprises a sheave 114 which is eccentric to a circular flange 113 rotatable on a flange 112 eccentric to a sleeve 109 which is keyed to a rotary shaft 26. Adjustment is effected by turning sheave 114 relative to flange 112. Sheave 114 is held in adjusted position by a washer 117 engaged by the head of a bolt 116 screwed into shaft 26. Sheave 114 actuates a connecting rod 115. Specifications 950,568 and 963,470 are referred to.
Patent GB-716295-A (GB)
Title: Improvements in or relating to means for the aeration and transport of granular and pulverulent materials
IPC: B65G53/18
Filed: 1952-06-09
Abstract: 716,295. Pneumatic conveyers. MOREAU, A. A. June 9, 1952, No. 14482/52. Class 78 (I). In conveyers for granular and like material of the kind in which the lower layers of the material are fluidised by gas admitted through a porous support on which the material rests, the porous support consists of a rigid support 4, Fig. 2, of metal or concrete of high porosity which rests on a support 5 of non- adhesive paper, calcined ebonite, &c., of smaller porosity. The support 5 is maintained against the support 4 by a support 6 of high porosity which may be made from concrete, metal or a material with a cellulosic base, e.g. agglomerated cellulose fibres as used in linings, panelling, &c., for heat insulation in houses. The supports 4, 5, 6 are mounted in bends 2, 3 formed along the edges of the trough I through which the gas is passed. The middle layer 15, Fig. 3, consists of several sheets of unglazed paper. In this construction the supports rest on the flanged edges of the trough and are secured by bolts 17, 18 passed through these edges and bars 19, 20. Slightly compressible members 12, 13 are inserted between the members 19, 20 and the flanges to seal the joint. In a modification, Fig. 4, a support 25 of wood fibres, cellulose, fibro-cement or amianthus which is too porous in its natural state, is squeezed between metal plates 24, 26 of high porosity by screws 21, 22. In another modification the middle layer may consist of sand or other granular material. In a further modification a single plate of high porosity is used and the porosity is reduced by coating its underside with paint having a base of cellulose or cellulosic varnish. In a still further modification the plate may be built up by pouring in concrete, the successive layers being of reduced porosity. This built-up plate may be covered by a layer of concrete of very high porosity. The low porosity sheets may consist of porous rubber.
Patent GB-251127-A (GB)
Title: Improvements in or relating to pistons for internal combustion engines
IPC: F16J9/22
Filed: 1925-06-04
Abstract: 251,127. Macdonald, A. E., and Motor Pistons, Ltd. June 4, 1925. Pistons; pistons, reducing wear of.- In a piston of the type comprising an aluminium &c. body having a packing- ring carrier of harder metal, secured during casting, the carrier is formed with a flange or flanges extending into the piston body. The carrier e, Fig. 1, preferably of aluminium bronze, has a horizontal flange g, which may be perforated, extending into the piston crown, and may have an upward extension e<1>, which may be perforated. The lower end of the carrier may form a bevelled joint with the piston body. In a modification the flange g is vertical. Alternatively the reinforcement is formed with serrations e<5>, Fig. 4.
Patent GB-614449-A (GB)
Title: Composite screen for optical projection
IPC: G03B21/60
Filed: 1946-05-14
Abstract: 614,449. Projection screens. DARIMONT, L. May 14, 1946, No. 14586. [Class 97 (i)] A screen for producing an impression of relief in a single projected picture consists of a base 3 covered with a white fabric 2 and, in front, a system 1 of relatively thick vertical threads 7 having a dull metallised coating. Preferably, two such systems of threads 1, 1<1> are used, slightly inclined, and each woven with similar but thinner threads 8. The assembly is supported by frames 4, 4<1>. Further assemblies like 1, 11, 2 may be mounted in front of the assembly shown, either in contact with it or spaced from it.
Patent GB-657765-A (GB)
Title: Improvements in duplicating machines
Inventor: FORD RONALD MAX
IPC: B41L11/00
Filed: 1948-05-31
Abstract: 657,765. Copying documents; printing- surfaces. FORD, Ltd., F. R., and FORD, R. M. May 31, 1948, No. 14596. [Class 100 (ii)] In rotary duplicators using a mirror-script master sheet adapted to be held to a printing- drum 12 by a clamp 11, and having an additional clamp 10 for securing a blanking-out sheet which may cover parts of the mastersheet to prevent impressions therefrom, the clamps are both mounted on axes 13, carried by a bracket 14 secured to the ends of the drum 12 and are held in open or closed position by pins 15 pivoted thereto and guided by a pivoted yoke 17 fitted with a spring 18 which passes through a dead-centre position as the clamps open or close. When it is desired to release the sheets from either clamp, a pin 20 with inclined face 21 is moved by a rod 23 to the position shown by full lines and this engages a pin 19 on the clamp 11 to open the clamp, and the pin 20 is moved to the dotted line position in which it is held by a spring 28 which can act on either side of the pivot 24 of pin 20 to hold the pin 20 in either position. Pins 25, 26 limit the movement of the pin 20. The clamp 10 is controlled by similar mechanism at the other end of the drum 12. A pin 30 is slidable in the side frames 22 of the machine to engage the pin 19 for closing the clamp members 10, 11. Specification 638,902 is referred to.
Patent GB-682277-A (GB)
Title: Fluid pressure counter-balance for flying hot saw or circular knife
IPC: B23D45/18
Filed: 1950-06-13
Abstract: 682,277. Saws. AETNA-STANDARD ENGINEERING CO. June 13, 1950 [Nov. 29, 1949], No. 14731/50. Class 145 (ii). [Also in Group XXIV] A circular saw machine having a cutting tool moved in an orbital path by variable throw crank means, and more particularly as disclosed in Specification 671,534, has fluid means for balancing the crank against out-of-balance forces set up when the crank is extended or reduced in length from an optimum position in which a fixed counterweight balances the system. The balancing means comprises eccentrics 101, 102 mounted on the crank shafts 26, 27 (there being two parallel cranks linked at their outer ends and thus carrying the saw mechanism parallel to the plane of the work for the entire revolution of the cranks as disclosed in Specification 671,534) in such a way that the circular collars 109, 110 are mounted with their greatest eccentricity opposite to the angular positions of the fixed counterweights. The levers 128, 129 are pivoted to the machine frame at 134, 135 and to the eccentric straps at 126, 127, the levers being connected to pistons 151, 152 by rods 149, 150, and it will be seen that when the fixed counterweights are descending, the eccentric straps will be rising. By applying pressure beneath pistons 151, 152, the eccentric straps can be assisted to rise and the counterweight will be assisted to move downward, lifting the cranks and saw assembly. Thus the counterweights are effectively made heavier, enabling them to balance the crank when the crank throw is increased. On the other hand, if the pressure is applied above the pistons 151, 152, the counterweights are assisted to rise and effectively made lighter to properly balance the shortened crank. The fluid pressure control system is conventional and hand operated. Unbalance is indicated by the driving motor ammeter.
Patent GB-1420146-A (GB)
Title: Process for the semi-continuous dyeing of synthetic textile materials
IPC: D06P5/20
Filed: 1973-03-28
Abstract: 1420146 Fixation of dyes on textiles HOECHST AG 28 March 1973 [29 March 1972] 14882/73 Heading D1B Flat structures of high-quality synthetic fibres which have been padded or printed with a dyestuff and an adjuvant comprising a nonionic thickener, a nonionic or substantially anionic wetting agent and a nonionic emulsifier are wound on a perforated cylinder which is then placed in a pressure vessel in the form of a skin, the pressure in the vessel is then reduced and the materials treated with a superheated liquid e.g. water to fix the dye. Preferably the pressure is reduced to 10mm of mercury or less, water being used at temperature of 110 to 135C. The Examples refer to fixation of disperse dyes on polyester materials.
Patent GB-208988-A (GB)
Title: Improvements in water tube boilers
IPC: F22B37/22
Filed: 1923-06-07
Abstract: 208,988. Babcock & Wilcox, Ltd., (Babcock & Wilcox Co.). June 7, 1923. Cleaning externally. -A boiler or feed-water heater having part of its heating surface formed of vertically extending straight tubes has travelling scrapers permanently mounted upon the tubes and movable baffles having a portion normally located in the path of the scrapers and adapted to be contacted by them to be moved out of of their path. The scrapers 23 mounted on the tubes 4 are reciprocated by chain gearing and may be operated during the working of the boiler by an electric motor whose reversal is controlled by a switch 38 operated by stops 371, 372 on the chain. A counterweighted pivoted baffle 11 normally projects into the path of the scrapers 23 and is tilted by the scrapers out of their path as they traverse the tubes. An aperture 14 is provided for the insertion of a steam lance, the soot falling into the hoppers 15.
Patent GB-592257-A (GB)
Title: Improvements in or relating to vacuum tube oscillators
IPC: H03F3/54
Filed: 1943-09-10
Abstract: 592,257. Thermionic valves; coaxial line resonators and circuits therefor. WESTERN ELECTRIC CO., Inc. Sept. 10, 1943, No. 14917. Convention date, Nov. 6, 1941. [Classes 39 (i), 40 (iii) and 40 (v)] An ultra short-wave oscillator comprises a triode valve associated with a first tuning line connected to the anode and grid and a second tuning line connected to the grid and cathode. The lines are short-circuited at the ends remote from the valve electrodes and have unequal lengths differing by an integral number of halfwave lengths of the oscillation frequency. The electrodes are connected to the lines at points corresponding to voltage loops of the standing waves developed in the lines at the oscillation frequency. In this way the lines may include a number of half-waves and the tube dimensions do not limit the positioning of the shortcircuiting bridges while oscillation is not possible at a lower frequency. Figs. 5 and 7 show an arrangement in which the tuning lines extend on both sides of the valve electrodes. The valve comprises a roughly hemispherical glass envelope 23 sealed to a flat metallic base 24. The grid 12 is mounted directly on the base and has the sectional form of a U-shaped channel provided with a multiplicity of narrow transverse slits to give a comb-like structure. Leads from the plate and filament are brought out through glass seals 25 diagonally arranged. The plate 13 has a rooflike form in section and a diamond-shaped plan. The timing lines 18-21 have their outer conductors directly connected to the base 24. The inner conductors consist of small diameter tubes the outer surfaces of which carry the high frequency currents while insulated conductors supply the energizing potentials. The inner tubes are located by metallic ring supports 27. The special capacity coupling. between the lines and the conductors is shown in Fig. 7 and comprises a block 41 with a mica layer between it and the tube 40. Tuning is obtained by sliding bridges. 28 comprising circular combs with flexible fingers which make contact with the lines.
Patent GB-917616-A (GB)
Title: Multistage foam generator
IPC: A62C5/00
Filed: 1961-04-26
Abstract: 917,616. Foam generators. BERGOMI S.p.A. April 25, 1961 [May 10, 1960], No. 14974/61. Class 14 (1). [Also in Group XXI] A multi-stage foam generator comprises first stage ejectors supplied with foam-producing liquid through the nozzles 1 and air through the apertures 2 discharging into a converging conduit 5 when the foam is acted upon by air-free water or foam-producing liquid from the second stage ejector nozzle 6; turbulence is induced which increases the homogeneity, fire extinguishing power and rate of travel of the foam. The conduit 8, 9 is connected to a conduit 10 having a third stage ejector nozzle 11 also supplied with airfree water or foam producing liquid. There may be any number of such stages. The end conduit 10 may be fitted with a spray nozzle or flexible hose.
Patent GB-948306-A (GB)
Title: Process for the decomposition of saturated and unsaturated aliphatic hydrocarbons
IPC: B01J19/12
Filed: 1960-04-28
Abstract: Hydrogen and higher hydrocarbons are obtained by treating gaseous saturated or unsaturated aliphatic hydrocarbons with electromagnetic radiation of wavelength not greater than that of ultra-violet light, excluding X-rays, at elevated temperature in the presence of a dehydrogenating metal catalyst.  The temperature may be 50-400 DEG C. at atmospheric pressure; the catalyst, which may be fluidized, may be nickel, copper, iron or a semi-conductor metal; the radiation is preferably ultra-violet radiation.  Other substances may be added to prevent carbon formation, e.g. oxygen, halogen, steam, hydrogen, other hydrocarbons, carbon tetrachloride or oxides of nickel, copper, iron or zinc.  In the examples methane is treated to obtain hydrogen and ethane, propane and butane.ALSO:Hydrogen and higher hydrocarbons are obtained by treating gaseous saturated or unsaturated aliphatic hydrocarbons with electro-magnetic radiation of wavelength not greater than that of ultra-violet light, excluding X-rays, at elevated temperature in the presence of a dehydrogenating metal catalyst. The temperature may be 50-400 DEG  C. at atmospheric pressure; the catalyst, which may be fluidized, may be nickel, copper, iron or a semi-conductor metal; the radiation is preferably ultra-violet radiation.  Other substances may be added to prevent carbon formation, e.g. oxygen, halogen, steam, hydrogen, other hydrocarbons, carbon tetrachloride or oxides of nickel, copper, iron or zinc.  In the examples, methane is treated to obtain hydrogen and ethane, propane and butane.